/* ============================================================
   Tokushi Teaser - main.css
   ============================================================ */

:root {
	/* Palette */
	--color-bg: #fbfaf7;
	--color-bg-alt: #ffffff;
	--color-bg-deep: #0f1419;
	--color-ink: #14181d;
	--color-ink-mid: #4a525c;
	--color-ink-soft: #7a8290;
	--color-line: #e4e0d6;
	--color-line-strong: #c6c0b1;

	/* Brand accents */
	--color-clinicspot: #1e3a8a;
	--color-clinicspot-soft: #e0e7ff;
	--color-healthstation: #c2410c;
	--color-healthstation-soft: #fff1e6;
	--color-curespot: #0f766e;
	--color-curespot-soft: #d9f1ed;
	--color-curecenter: #9f1239;
	--color-curecenter-soft: #fde2ea;
	--color-doctorstation: #3f3f46;
	--color-doctorstation-soft: #e7e7ea;
	--color-medicalspot: #15803d;
	--color-medicalspot-soft: #dcfce7;
	--color-doctorspot: #6d28d9;
	--color-doctorspot-soft: #ede9fe;
	--color-clinicstation: #0e7490;
	--color-clinicstation-soft: #cffafe;
	--color-medicalstation: #ca8a04;
	--color-medicalstation-soft: #fef3c7;

	/* Typography */
	--font-jp: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', 'Meiryo', sans-serif;
	--font-en: 'Fraunces', 'Times New Roman', 'YuMincho', 'Yu Mincho', serif;

	/* Spacing */
	--space-section: clamp(80px, 12vw, 160px);
	--space-block: clamp(40px, 6vw, 80px);
	--content-max: 1200px;
	--content-narrow: 760px;

	/* Misc */
	--radius: 4px;
	--ease: cubic-bezier(0.16, 0.84, 0.32, 1);
}

/* ------------------------------------------------------------
   Reset
   ------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }

html {
	-webkit-text-size-adjust: 100%;
	scroll-behavior: smooth;
}

body {
	margin: 0;
	background: var(--color-bg);
	color: var(--color-ink);
	font-family: var(--font-jp);
	font-weight: 400;
	font-size: 16px;
	line-height: 1.85;
	letter-spacing: 0.02em;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	font-feature-settings: "palt";
}

img, svg { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1em; }
h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 500; line-height: 1.3; }

/* ------------------------------------------------------------
   Accessibility
   ------------------------------------------------------------ */
.skip-link {
	position: absolute;
	top: -100px;
	left: 8px;
	background: var(--color-ink);
	color: #fff;
	padding: 12px 20px;
	z-index: 1000;
	border-radius: var(--radius);
	transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 8px; }

:focus-visible {
	outline: 2px solid var(--color-ink);
	outline-offset: 4px;
	border-radius: 2px;
}

/* ------------------------------------------------------------
   Header
   ------------------------------------------------------------ */
.site-header {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	z-index: 100;
	padding: 20px 0;
	background: rgba(251, 250, 247, 0.85);
	backdrop-filter: saturate(140%) blur(10px);
	-webkit-backdrop-filter: saturate(140%) blur(10px);
	border-bottom: 1px solid transparent;
	transition: border-color 0.3s var(--ease);
}
.site-header__inner {
	max-width: var(--content-max);
	margin: 0 auto;
	padding: 0 clamp(20px, 5vw, 48px);
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 24px;
}
.site-header__brand {
	display: flex;
	flex-direction: column;
	line-height: 1.1;
}
.site-header__brand-mark {
	font-family: var(--font-en);
	font-size: 20px;
	font-weight: 500;
	letter-spacing: 0.04em;
}
.site-header__brand-sub {
	font-family: var(--font-en);
	font-size: 10px;
	letter-spacing: 0.3em;
	color: var(--color-ink-soft);
	margin-top: 2px;
	text-transform: uppercase;
}
.site-header__nav {
	display: flex;
	gap: clamp(16px, 3vw, 36px);
	font-family: var(--font-en);
	font-size: 13px;
	letter-spacing: 0.12em;
	text-transform: uppercase;
}
.site-header__nav a {
	color: var(--color-ink-mid);
	position: relative;
	padding: 4px 0;
	transition: color 0.2s var(--ease);
}
.site-header__nav a::after {
	content: "";
	position: absolute;
	left: 0;
	bottom: 0;
	width: 100%;
	height: 1px;
	background: currentColor;
	transform: scaleX(0);
	transform-origin: right;
	transition: transform 0.3s var(--ease);
}
.site-header__nav a:hover { color: var(--color-ink); }
.site-header__nav a:hover::after {
	transform: scaleX(1);
	transform-origin: left;
}

@media (max-width: 640px) {
	.site-header__nav { display: none; }
}

/* ------------------------------------------------------------
   Layout helpers
   ------------------------------------------------------------ */
.site-main { display: block; }

.section {
	padding: var(--space-section) clamp(20px, 5vw, 48px);
}
.section__inner {
	max-width: var(--content-max);
	margin: 0 auto;
}
.section__inner--narrow {
	max-width: var(--content-narrow);
}
.section__eyebrow {
	font-family: var(--font-en);
	font-size: 12px;
	letter-spacing: 0.4em;
	text-transform: uppercase;
	color: var(--color-ink-soft);
	margin-bottom: 24px;
}
.section__heading {
	font-family: var(--font-jp);
	font-weight: 500;
	font-size: clamp(28px, 4vw, 42px);
	letter-spacing: 0.04em;
	margin-bottom: clamp(32px, 5vw, 56px);
}
.section__lead {
	font-size: clamp(15px, 1.4vw, 17px);
	color: var(--color-ink-mid);
	max-width: 680px;
	margin-bottom: clamp(48px, 6vw, 72px);
}

/* ------------------------------------------------------------
   Hero
   ------------------------------------------------------------ */
.hero {
	min-height: 100vh;
	min-height: 100svh;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 140px clamp(20px, 5vw, 48px) 80px;
	position: relative;
	background:
		radial-gradient(ellipse 80% 60% at 50% 0%, rgba(30, 58, 138, 0.05), transparent 60%),
		radial-gradient(ellipse 60% 40% at 100% 100%, rgba(15, 118, 110, 0.04), transparent 60%),
		var(--color-bg);
}
.hero__inner {
	max-width: 880px;
	width: 100%;
	text-align: center;
}
.hero__status {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	font-family: var(--font-en);
	font-size: 12px;
	letter-spacing: 0.3em;
	color: var(--color-ink-mid);
	text-transform: uppercase;
	padding: 8px 18px;
	border: 1px solid var(--color-line-strong);
	border-radius: 999px;
	background: rgba(255, 255, 255, 0.6);
	margin-bottom: clamp(32px, 5vw, 56px);
}
.hero__status-dot {
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: var(--color-curespot);
	animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
	0%, 100% { opacity: 1; transform: scale(1); }
	50% { opacity: 0.5; transform: scale(1.3); }
}
.hero__heading {
	font-family: var(--font-jp);
	font-weight: 500;
	font-size: clamp(40px, 8vw, 88px);
	letter-spacing: 0.06em;
	line-height: 1.2;
	margin-bottom: clamp(28px, 4vw, 40px);
}
.hero__heading-lead { display: inline-block; }
.hero__sub {
	font-size: clamp(15px, 1.5vw, 18px);
	color: var(--color-ink-mid);
	line-height: 2;
	margin-bottom: clamp(36px, 5vw, 56px);
}
.hero__brands {
	display: inline-flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: clamp(8px, 1.5vw, 16px);
	font-family: var(--font-en);
	font-size: clamp(13px, 1.4vw, 16px);
	letter-spacing: 0.15em;
	color: var(--color-ink);
	padding: 14px 28px;
	border-top: 1px solid var(--color-line);
	border-bottom: 1px solid var(--color-line);
	margin: 0 auto;
}
.hero__brands span:not([aria-hidden]) {
	font-weight: 500;
}
.hero__brands span[aria-hidden] { color: var(--color-ink-soft); }

.hero__scroll {
	position: absolute;
	bottom: 40px;
	left: 50%;
	transform: translateX(-50%);
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 12px;
	color: var(--color-ink-soft);
}
.hero__scroll-text {
	font-family: var(--font-en);
	font-size: 11px;
	letter-spacing: 0.3em;
	text-transform: uppercase;
}
.hero__scroll-line {
	width: 1px;
	height: 40px;
	background: linear-gradient(to bottom, var(--color-line-strong), transparent);
	position: relative;
	overflow: hidden;
}
.hero__scroll-line::after {
	content: "";
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 50%;
	background: var(--color-ink);
	animation: scrollLine 2.4s var(--ease) infinite;
}
@keyframes scrollLine {
	0%   { transform: translateY(-100%); }
	100% { transform: translateY(200%); }
}

/* ------------------------------------------------------------
   Vision
   ------------------------------------------------------------ */
.section--vision {
	background: var(--color-bg-alt);
	border-top: 1px solid var(--color-line);
	border-bottom: 1px solid var(--color-line);
}
.vision__body {
	max-width: 680px;
	font-size: clamp(16px, 1.5vw, 18px);
	line-height: 2.1;
	color: var(--color-ink);
}
.vision__body p + p { margin-top: 1.6em; }

/* ------------------------------------------------------------
   Brands
   ------------------------------------------------------------ */
.section--brands { background: var(--color-bg); }
.brands-grid {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 24px;
}
.brands-grid .brand-card {
	flex: 1 1 calc((100% - 48px) / 3);
	max-width: calc((100% - 48px) / 3);
	min-width: 280px;
}
@media (max-width: 960px) {
	.brands-grid .brand-card {
		flex: 1 1 100%;
		max-width: 100%;
	}
}

.brand-card {
	background: var(--color-bg-alt);
	border: 1px solid var(--color-line);
	border-radius: var(--radius);
	padding: clamp(28px, 3vw, 40px);
	display: flex;
	flex-direction: column;
	position: relative;
	overflow: hidden;
	transition:
		transform 0.4s var(--ease),
		box-shadow 0.4s var(--ease),
		border-color 0.4s var(--ease);
}
.brand-card::before {
	content: "";
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 3px;
	background: var(--accent, var(--color-ink));
	transform: scaleX(0);
	transform-origin: left;
	transition: transform 0.5s var(--ease);
}
.brand-card:hover {
	transform: translateY(-4px);
	box-shadow: 0 20px 40px -20px rgba(20, 24, 29, 0.15);
	border-color: var(--accent, var(--color-line));
}
.brand-card:hover::before {
	transform: scaleX(1);
}

.brand-card--clinicspot     { --accent: var(--color-clinicspot);     --accent-soft: var(--color-clinicspot-soft); }
.brand-card--healthstation  { --accent: var(--color-healthstation);  --accent-soft: var(--color-healthstation-soft); }
.brand-card--curespot       { --accent: var(--color-curespot);       --accent-soft: var(--color-curespot-soft); }
.brand-card--curecenter     { --accent: var(--color-curecenter);     --accent-soft: var(--color-curecenter-soft); }
.brand-card--doctorstation  { --accent: var(--color-doctorstation);  --accent-soft: var(--color-doctorstation-soft); }
.brand-card--medicalspot    { --accent: var(--color-medicalspot);    --accent-soft: var(--color-medicalspot-soft); }
.brand-card--doctorspot     { --accent: var(--color-doctorspot);     --accent-soft: var(--color-doctorspot-soft); }
.brand-card--clinicstation  { --accent: var(--color-clinicstation);  --accent-soft: var(--color-clinicstation-soft); }
.brand-card--medicalstation { --accent: var(--color-medicalstation); --accent-soft: var(--color-medicalstation-soft); }

.brand-card__header {
	margin-bottom: 24px;
	padding-bottom: 24px;
	border-bottom: 1px solid var(--color-line);
}
.brand-card__mark {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 48px;
	height: 48px;
	border-radius: 50%;
	background: var(--accent-soft);
	color: var(--accent);
	font-family: var(--font-en);
	font-size: 14px;
	font-weight: 600;
	letter-spacing: 0.05em;
	margin-bottom: 20px;
}
.brand-card__name {
	font-family: var(--font-en);
	font-size: clamp(22px, 2.4vw, 28px);
	font-weight: 500;
	letter-spacing: 0.02em;
	color: var(--accent);
	margin: 0 0 8px;
}
.brand-card__tag {
	font-size: 15px;
	color: var(--color-ink);
	margin: 0;
	font-weight: 500;
}
.brand-card__body {
	font-size: 14.5px;
	color: var(--color-ink-mid);
	line-height: 1.9;
	flex-grow: 1;
}
.brand-card__note {
	font-size: 12px;
	color: var(--color-ink-soft);
	line-height: 1.7;
	margin: 16px 0 0;
	padding-top: 16px;
	border-top: 1px dashed var(--color-line);
}
.brand-card__status {
	font-family: var(--font-en);
	font-size: 11px;
	letter-spacing: 0.3em;
	text-transform: uppercase;
	color: var(--accent);
	margin: 16px 0 0;
	padding: 6px 12px;
	background: var(--accent-soft);
	border-radius: 999px;
	align-self: flex-start;
}

.brands-grid__footnote {
	margin-top: clamp(40px, 5vw, 56px);
	font-size: 12px;
	color: var(--color-ink-soft);
	text-align: center;
}

/* ------------------------------------------------------------
   Partners
   ------------------------------------------------------------ */
.section--partners {
	background: var(--color-bg-alt);
	border-top: 1px solid var(--color-line);
	border-bottom: 1px solid var(--color-line);
}
.partners__body {
	max-width: 680px;
	font-size: clamp(15px, 1.4vw, 17px);
	color: var(--color-ink);
	line-height: 2;
}
.partners__body p + p { margin-top: 1.4em; }

/* ------------------------------------------------------------
   Contact
   ------------------------------------------------------------ */
.section--contact {
	background: var(--color-bg);
	text-align: center;
}
.contact__body {
	font-size: clamp(15px, 1.4vw, 17px);
	color: var(--color-ink-mid);
	line-height: 2;
	margin-bottom: clamp(40px, 5vw, 56px);
}
.contact__cta-wrap { margin: 0; }
.contact__cta {
	display: inline-flex;
	align-items: center;
	gap: 16px;
	padding: 20px 40px;
	background: var(--color-ink);
	color: #fff;
	font-size: 15px;
	font-weight: 500;
	letter-spacing: 0.08em;
	border-radius: var(--radius);
	transition:
		background-color 0.25s var(--ease),
		transform 0.25s var(--ease),
		box-shadow 0.25s var(--ease);
}
.contact__cta:hover {
	background: #2a3340;
	transform: translateY(-2px);
	box-shadow: 0 12px 28px -12px rgba(20, 24, 29, 0.4);
}
.contact__cta-arrow {
	font-family: var(--font-en);
	transition: transform 0.25s var(--ease);
}
.contact__cta:hover .contact__cta-arrow {
	transform: translateX(6px);
}

/* ------------------------------------------------------------
   Footer
   ------------------------------------------------------------ */
.site-footer {
	background: var(--color-bg-deep);
	color: #c2c8d1;
	padding: clamp(48px, 6vw, 72px) clamp(20px, 5vw, 48px);
}
.site-footer__inner {
	max-width: var(--content-max);
	margin: 0 auto;
	text-align: center;
}
.site-footer__brands {
	font-size: 12px;
	color: #8b95a3;
	margin-bottom: 16px;
	line-height: 1.8;
}
.site-footer__copy {
	font-family: var(--font-en);
	font-size: 11px;
	letter-spacing: 0.15em;
	color: #8b95a3;
	margin: 0;
}

/* ------------------------------------------------------------
   Fade-in animation
   ------------------------------------------------------------ */
[data-fade] {
	opacity: 0;
	transform: translateY(24px);
	transition:
		opacity 0.8s var(--ease),
		transform 0.8s var(--ease);
}
[data-fade].is-visible {
	opacity: 1;
	transform: translateY(0);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	*, *::before, *::after {
		animation-duration: 0.001ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.001ms !important;
	}
	[data-fade] {
		opacity: 1;
		transform: none;
	}
	.hero__status-dot,
	.hero__scroll-line::after { animation: none; }
}

/* ------------------------------------------------------------
   Small screens fine-tuning
   ------------------------------------------------------------ */
@media (max-width: 640px) {
	body { font-size: 15px; }
	.hero__brands {
		padding: 12px 18px;
		gap: 6px;
	}
	.hero__scroll { bottom: 24px; }
	.contact__cta { padding: 16px 28px; font-size: 14px; }
}